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Economy
May 13, 2026
Analyzed by GPT OSS 120B

UK Bond Yields Surge Amid Labour Turmoil and Reform Gains

AI Summary
UK government bond yields jumped to their highest level in 28 years as political uncertainty surrounding Labour’s leadership and Reform’s electoral gains rattled investors. Analysts warn higher borrowing costs could curb growth, while the upcoming King’s Speech may offer some market relief.

Morning Snapshot: UK Bond Market Bruised by Political Turbulence

Good morning, and welcome to our rolling coverage of business, the financial markets and the world economy. The UK bond market is bruised this morning after a day of political turbulence drove up Britain’s borrowing costs.

Rising Yields: 10‑Year Gilt Above 5% – Highest Since 1998

UK long‑term bond yields hit their highest levels in 28 years on Tuesday, pushing the 10‑year gilt yield back above 5%, the highest level since 1998.

Numbers at a Glance: Yield Spike and Borrowing Cost Implications

  • 10‑year gilt yield: > 5% (first time above 5% since 1998)
  • Yield rise triggered by fears of a left‑leaning Labour government and potential fiscal expansion.
  • Higher yields mean investors demand greater compensation, increasing the cost of borrowing for the UK Treasury.

Political Shockwaves: Labour Leadership Uncertainty and Reform’s Rise

Investors are wary that a shift to the left under Keir Starmer could lead to higher spending and larger deficits. At the same time, the prospect of Nigel Farage entering Downing Street after Reform’s gains in the recent local elections adds another layer of uncertainty.

Senior analyst Ipek Ozkardeskaya of Swissquote notes that the market is "grappling with their own political shakeups" and that the combination of fiscal concerns and inflation outlook is driving yields up.

Market strategist Bill Blain of Wind Shift Capital cautions that investors may not view Reform as a "safe pair of hands" for managing the bond market and public spending.

Looking Ahead: What the King’s Speech Could Mean for Debt Markets

The UK government will outline its legislative agenda in the King’s Speech later today, which could provide some respite for Keir Starmer amid ministerial resignations and calls for his departure.

  • 10am BST: IEA monthly oil market report
  • 10am BST: Eurozone GDP report (latest estimate for Q1 2026)
  • 1.30pm BST: US producer prices inflation report for April
  • 3pm BST: Bank of England policymaker Catherine L. Mann to release speech on “The UK’s international exposures and vulnerabilities”